Assertion : The correct order of increasing molecular forces in the given polymres is : Buna-S, Polthene, Nylon -6,6 Reason : The properties of polyme
Assertion : The correct order of increasing molecular forces in the given polymres is : Buna-S, Polthene, Nylon -6,6
Reason : The properties of polymers depends upon the molecular forces.
A. If both assertion and reason are true and reason is the correct explanation of assertion .
B. If both assertion and reason are true but reason is not the correct explanation of assertion .
C. If assertion is true but reason is false.
D. If both assertion and reason are false.
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Correct Answer - B
Elastomers ( buna-S) have weakest intermolecular forces .
Fibres ( nylon -6,6) have strong intermolecular forces. Thermoplastic polymers ( polythene ) have intermolecular forces intermediate between elastomers and fibres.
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